#include<iostream> using namespace std; int main() { int n, m,x,y; int a[11][11]; cin >> n >> m; cin >> x >> y; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cin >> a[i][j]; } } for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { if(i + 1 == x){ cout << a[y - 1][j] << " "; } else if(i + 1 == y){ cout << a[x - 1][j] <<" "; }else{ cout << a[i][j]<<" "; } } cout << endl; } }